diff --git a/src/tsconfig.strictNullChecks.json b/src/tsconfig.strictNullChecks.json
index 3b285dbf6f02e17bc74e0cc93f491a5895b585bc..764ac1e7d47eb372dcb44a06272ad3bb618003b6 100644
--- a/src/tsconfig.strictNullChecks.json
+++ b/src/tsconfig.strictNullChecks.json
@@ -611,6 +611,7 @@
 		"./vs/workbench/parts/markers/electron-browser/markersFileDecorations.ts",
 		"./vs/workbench/parts/markers/electron-browser/markersFilterOptions.ts",
 		"./vs/workbench/parts/markers/electron-browser/markersModel.ts",
+		"./vs/workbench/parts/markers/electron-browser/markersPanelActions.ts",
 		"./vs/workbench/parts/markers/electron-browser/messages.ts",
 		"./vs/workbench/parts/outline/electron-browser/outline.ts",
 		"./vs/workbench/parts/output/common/output.ts",
diff --git a/src/vs/workbench/parts/markers/electron-browser/markersPanelActions.ts b/src/vs/workbench/parts/markers/electron-browser/markersPanelActions.ts
index e3346332b22ec1d19e68916c0e2a8db6effd69b7..e242eb3189693f2369aa9a12c08a7045434d4309 100644
--- a/src/vs/workbench/parts/markers/electron-browser/markersPanelActions.ts
+++ b/src/vs/workbench/parts/markers/electron-browser/markersPanelActions.ts
@@ -356,7 +356,7 @@ export class QuickFixAction extends Action {
 				pinned: false,
 				revealIfVisible: true
 			},
-		}, ACTIVE_GROUP).then(() => null);
+		}, ACTIVE_GROUP).then(() => void 0);
 	}
 
 	private getFixes(marker: Marker): Promise<CodeAction[]> {
@@ -408,6 +408,9 @@ export class QuickFixActionItem extends ActionItem {
 
 	public onClick(event: DOM.EventLike): void {
 		DOM.EventHelper.stop(event, true);
+		if (!this.element) {
+			return;
+		}
 		const elementPosition = DOM.getDomNodePagePosition(this.element);
 		(<QuickFixAction>this.getAction()).getQuickFixActions().then(actions => {
 			this.contextMenuService.showContextMenu({